Mammalia |
Cetartiodactyla |
Delphinidae
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
大洋性; 海洋洄游的 (參考文獻 75906); 深度上下限 0 - 1316 m (參考文獻 116169). Tropical
208994 Tursiops truncatus gephyreus. Southwest Atlantic.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ?, range 240 - 260 cm Max length : 380 cm TL 雄魚/尚未辨別雌雄; (參考文獻 1394); 最大體重: 650.0 kg (參考文獻 1394)
This coastal subspecies (Tursiops truncatus geyphyreus) can be distinguished from the nominate offshore subspecies (Tursiops truncatus truncatus) by the following diagnosable cranial features: W-shaped border of the antorbital notch (vs. U-shaped); barely or not visible interparietal bone (vs. clearly visible); cranial vertex from the posterior end of nasals to the nuchal crest is short and rectangular (vs. long and squared); left nasal bone noticeably smaller and more compressed antero-posteriorly than the right (vs. nearly symmetrical); Falciform lateral margin of the ascending process of right premaxilla (vs. straight or slightly concave); lateral margin of the ascending process of the maxillae over the preorbital process is deflected dorsally (vs. flat) (Ref. 128824).
Preyed upon by great white sharks (Ref. 32140). Dolphins are directly caught for use as shark-bait in Sta. Ana and Aparri, Philippines (Ref. 77119). Found primarily in coastal and inshore regions of tropical and temperate waters of the world (Ref. 936) and deeper channels between islands (Ref. 122680). Also inhabits pelagic waters, such as those in the eastern tropical Pacific (Ref. 936). In herds of less than 20 individuals (Ref. 801). Feeds either cooperatively or in solitary. They can obtain prey via 'fish whacking' and steering fish onto mudflats (Ref. 122680). Feeds on fish (Refs. 801, 936) crustaceans, and cephalopods (Ref. 801).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
主要參考資料
參考文獻 | 合作者 | 合作者
Tan, J.M.L. 1995 A Field Guide to the Whales and Dolphins in the Philippines. Makati City: Bookmark. 125 p. (參考文獻 936)
CITES狀態 (參考文獻 108899)
對人類具威脅
人類使用
漁業: 商業性; 誘餌: usually
FAO - 漁業: 著陸, 魚種描繪 | FishSource |
工具
更多資訊
營養生態學食物項目（獵物）
食性組成
食物消耗量
捕食者
人口動態成長最大年齡/尺寸長度重量比長度關係長度-頻率質量轉換豐度
網路資源
基於模型的估計
首選溫度
(Ref.
115969): 6.4 - 28.9, mean 20.3 (based on 16698 cells).
釣魚的脆弱性
Very high vulnerability (76 of 100).
價格種類
Unknown.
